package com.atguigu.gulimall.ware.config;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.Exchange;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

@Configuration
public class RabbitConfig {
    @Bean
    public MessageConverter messageConverter() {
        //在容器中导入Json的消息转换器
        return new Jackson2JsonMessageConverter();
    }


    @Bean
    public Exchange stockEventExchange(){
        /**
         * String name, boolean durable, boolean autoDelete, Map<String, Object> arguments
         */
        return new TopicExchange("stock-event-exchange",true,false);
    }
    @Bean
    public Queue stockReleaseStockQueue(){
        /**
         * String name, boolean durable, boolean exclusive, boolean autoDelete,
         *                        @Nullable Map<String, Object> arguments
         */
        return new Queue("stock.release.stock.queue",true,false,false);
    }

    @Bean
    public Queue stockDelayQueue(){
        HashMap<String, Object> arguments = new HashMap<>();
        arguments.put("x-dead-letter-exchange", "stock-event-exchange");
        arguments.put("x-dead-letter-routing-key", "stock.release");
        // 消息过期时间 2分钟
        arguments.put("x-message-ttl", 120000);
        return new Queue("stock.delay.queue",true,false,false,arguments);
    }

    @Bean
    public Binding stockLockedBinding(){
        /**
         * String destination, DestinationType destinationType, String exchange, String routingKey,
         *                        @Nullable Map<String, Object> arguments
         */
        Map<String, Object> arguments=new HashMap<>();
        return new Binding("stock.delay.queue", Binding.DestinationType.QUEUE,"stock-event-exchange","stock.locked",arguments);
    }

    @Bean
    public Binding stockReleaseBinding(){
        /**
         * String destination, DestinationType destinationType, String exchange, String routingKey,
         *                        @Nullable Map<String, Object> arguments
         */
        Map<String, Object> arguments=new HashMap<>();
        return new Binding("stock.release.stock.queue", Binding.DestinationType.QUEUE,"stock-event-exchange","stock.release.#",arguments);
    }

}
